Writing Expressions
Janet has to pay a $45 initial fee to join a gym. She then has to pay a $30 monthly fee. Write an expression to represent the cost for m months.
45 + 30m
OR
30m + 45
Simplify:
-16x - 34 + 20x
4x - 34
OR
-34 + 4x
2(3x - 12)
6x - 24
-2(3y - 7) + 13
-6y + 27
3x - 9
3(x - 3)
Don bought 40 new rubber bands for a project. If he uses 2 rubber bands each day as he works on the project, write an expression to represent the number of rubber bands he will have left after d days.
40 - 2d
Name the like terms in this expression:
14z - 11 + 17x + 10 - 4z
14z and 4z
11 and 10
-4(12 - 8x)
-48 + 32x
3(x + 7) + 2(4x - 10)
11x + 1
OR
1 + 11x
12x + 16y - 24
4(3x + 4y - 6)
At a supply store, a package of paper costs $15.50, a notebook costs $2.75, and a sticker costs $0.28. Stan buys p packages of paper, n notebooks, and s stickers. Write an expression to represent the total cost.
15.50p + 2.75n + 0.28s
Name the coefficients in this expression:
16f + 17 + 11h - 3 + g
16, 11, 1
(5y - 12z)(-3)
-15y + 36z
OR
36z - 15y
-8(3v - 1) + 6
-24v + 14
-10r - 25
-5(2r + 5)
The expression that represents the cost of k pounds of kiwi and s pounds of strawberries is 2.35k + 1.18s. How much would it cost to buy 3 pounds of kiwi and 4 pounds of strawberries?
$11.77
Simplify:
-14c + 16 - 3c - 12 + 7c
-10c + 4
OR
4 - 10c
(-3/4)(20x - 8 + 12w)
-15x + 6 - 9w
1.2(x + 7) - 2(x + 5)
-0.8x - 1.6
14x + 35xy - 21xz
7x(2 + 5y - 3z)
Fred pays $25 each month to be in a book club, $10 each month for a magazine subscription, and paid a fee of $50 to join a ski club. Write an expression to represent the total cost for Fred for m months. Simplify the expression.
35m + 50
OR
50 + 35m
Simplify:
-3.5 - 7.2y + 8.1 - 10y
4.6 - 17.2y
OR
-17.2y + 4.6
-1.2(4x + 14 - 11z)
-4.8x - 16.8 + 13.2z
7(-3x + 4) - (x - 10)
-22x + 38
-24gh - 18h - 9fh
-3h(8g + 6 + 3f)